基于线性光耦HCNR201和RS-422的固态存储器的设计与实现

发布时间：2018-01-02 17:17

本文关键词：基于线性光耦HCNR201和RS-422的固态存储器的设计与实现　出处：《科学技术与工程》2014年09期 　论文类型：期刊论文

更多相关文章： HCNR RS- 模拟量 PCM数字量 编帧

【摘要】：设计一种基于线性光耦HCNR201和RS-422总线接口的新型采集存储固态存储器,用于实现模拟量的采集和数字量的接收。采用HCNR201构成光耦隔离电路隔离2路0~5V模拟电压,由FPGA控制AD对其采编,同时应用RS-422接口电路接收1路PCM码流数据,将其混合编帧后转存写入FLASH中。重点阐述了固态存储器的硬件电路设计、FPGA逻辑设计与关键技术的解决方案。实际测试表明,该固态存储器能够准确采集接收2路模拟量与1路PCM数字量信号,存储数据完整可靠。
[Abstract]:A novel acquisition and storage solid state memory based on linear optocoupler HCNR201 and RS-422 bus interface is designed. It is used to realize the acquisition of analog quantity and the receiving of digital signal. The optocoupler isolation circuit is used to isolate 2 channels 0 ~ 5 V analog voltage by using HCNR201, and AD is controlled by FPGA to collect and edit the analog voltage. At the same time, the RS-422 interface circuit is used to receive one channel of PCM code stream data, and then the mixed frame coding is transferred to the FLASH. The hardware circuit design of solid state memory is described in detail. FPGA logic design and solution of key technology. The test results show that the solid state memory can accurately collect and receive 2 analog signals and 1 channel PCM digital signal, and the data stored is complete and reliable.
【作者单位】：中北大学电子测试技术国家重点实验室仪器科学与动态测试教育部重点实验室;
【基金】：国家自然科学基金(51275491)资助
【分类号】：TP333.4
【正文快照】： 在各种恶劣条件下的飞行器飞行试验中,固态存储器作为系统的重要数据记录设备,获取其在飞行过程中的各个重要工作环境参数,为飞行器整体系统的设计生产、性能评估、故障分析与改进提供了可靠的试验分析数据。本设计针对相关课题的任务要求,设计了一种可以确保固态存储器与测

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